Harrow



(No Model.)

S. HARROLD.

HARROW.

- No. 248,461. Patented Oct. 18,1881.

ffy/Magny UNITE STATES PATENT Critica.,

SAMUEL HARROLD, OF BATAVIA, ILLINOIS.

HARROW.

SPECIFICATION forming part of Letters Patent No. 248,461, dated'October 18, 1881.

Application led August 12, 1881. (No model.)

.To all whom t may concerne:

Be it known that 1, SAMUEL HARROLD, a citizen of the United States, residing at Batavia, in the county of Kane and State ofIllinois, have invented a new and Improved Harrow, of which the following is a specification.

My invention relates to an improvement in th atdescription of sectional drag-harrow which has its side sections formed of oblique parallel beams, and its middle or center section of a form corresponding to the outline of the iiat surface of a truncated cone cut through its center; and my improvement consists, tlrst,in having the said v middle or central section formed of two independent sections, the respcctive inner side beams of which are parallel withone another, while the other beams ofthe respective middle sections are oblique or divergent from the parallel beams, but parallel with one another, and the oblique beams ofone middle section are parallel with the oblique beams of its contiguous side section, while those of the other middle section are parallel with its contiguous side section, second, in having the teeth of one-half-two sectionsof the harrow set backwardly divergent from a perpendicular line and all out of line with one another, while the teeth of the other half--two sections-of the harrow are also set backwardly divergent from a perpendicular line, While the oblique set of the teeth of one-half of the harrow-two sections-is just the reverse of that of the other half-two sections-of the harrow, whereby the harrow can be readily turned around7 and nearly every tooth of the several sections is prevented from striking the earth in the same path or line.

In the accompanying drawings, Figure 1 is a top view of my improved harrow. Fig. 2 is a detail back view, showing the two intermediate or middle sections of the harrow; and Fig. 3 is a side view of the harrow.

A A represent the central or intermediate sections of the harrow, and B B the side sections thereof. C is the draftevener, with central draft-bars, a, and link b.

The sections A A B B are linked, as at c, to the evener, each section beingindependent in its movement up and down and in all directions, while the draft in all is alike, being from the center of the eveuer. The sections A A are just alike, and each has an inner-side beam, d, forming a right angle with the evener C, while cach ofits other beams d are divergent from these side beams, the divergence of the beams on the section A beingjust the reverse of that on the section A. The sections B B' have all their beams fj" divergent from the side beams, ci d', the beamsfbeiug divergent in opposite directions t'o that of the beams ff, and all the beams of the respective sections are parallel with one another.

The teeth g of the four sections of the harrow are set with a backward slant, and by being set on oblique beams are thrown out of line with one another. The series of teeth on the oblique beams of one half of the harrowtwo sections-act upon the earth just the reverse ofthe series of teeth on the other half, one series tending to strike the earth from oppositely oblique directions to the other. The backward slant ofthe teeth facilitates the turning around of the harrow, while the Obliquity of the beamsissuch that the teeth of one beam are out of line with one another, and the same is true of all the teeth, except those on the two inner side beams ofthe sections A A; and to avoid having the teeth on each of the said side beams, d, travel in the same line, a middle tooth, g', of each of said bars is set with a reverse Obliquity to that given to the front and rear or other teeth, g2, on said bars, as shown in Fig. 3 of the drawings.

The advantage of having the harrow formed of four sections in the peculiar manner described is this: On rough and uneven ground and in the dead furrow 7 the teeth of the harrow Will always be in contact with the earth, for the central or intermediate portion, being in two sections, will operate as follows: When one section is resting on a lknoll or pile of earth the other section will not be raised oft' the ground, and also when a dead furrow appears one section will drop into it, while the other rests upon the ground. Were theintermediate portions, A A, made in one piece, so as to form a figure similar to avertical section of a truncated cone, as has heretofore been the case, these advantages could not be secured, and about twothirds of its teeth would be thrown out of contact with the ground under similar conditions of use. The slanting teeth, with their arrangement out of line with one another, enable the harrow to do good and effective work, and also avoid the necessity of turning over the side sections, B B', upon the middle or intermediate sections in turning around; and the whole construction is such that the draft-evener can be used to great advantage, while each section has an independent movement. By having the teeth in the position shown itis impossible for the barrow to clog with cornstalls or Weeds, so as to require stopping to'elean the teeth.

I do not claim a barrow formed otl three sec tions, the intermediate one having two oblique sides, which diverge from one another backward; neither do I claim aharrotv formed ot' four sections, the intermediate sections of which have sides which are all parallel with one another; neither do I claim a draft-evener in combination with either ot the descriptions of harrows here diselaimed; neither do l claim oblique or backwardly-inclinetl teeth on barrow-frames which have all ot their sides parallel with one another; neither do I claim a single frame which has its teeth set inclined in opposite directions in the side beams oi' such frame; but

What I claim as my invention, and desire to secure by Letters Patent, is-

1. rIhe intermediate sections, A A', having respectively parallel inner side beams, d, which are at right angles to the evener C, and oblique parallel beams d', those d' of one section being divergent in a direction the reverse of that of the other section, in combination with the side sections, B B', having parallel beams, those of one section being divergent in areverse direction to those of the other section, substantially as and tor the purpose described.

2. The intermediate sections, A A', having parallel inner side beams, d, which are at right angles to the evener C, and oblique parallel beams d', those of one section being divergent in a direction the reverse ot' that of the other, in combination with the side sections, B B', having parallel beams, those of one section being divergent in a reverse direction to those of the other section, and with teeth which slant backward and are set on reverse oblique lines and oppose the draft of the team on opposite sides ot' the center ot' the barrow, substantially as and for the purpose described.

SAMUEL HARROLD.

Witnesses E. A. CONDE, WHITELY SHAW. 

